GB2082621A - Production of gas in a ferrous- bath-reactor - Google Patents

Production of gas in a ferrous- bath-reactor Download PDF

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Publication number
GB2082621A
GB2082621A GB8122680A GB8122680A GB2082621A GB 2082621 A GB2082621 A GB 2082621A GB 8122680 A GB8122680 A GB 8122680A GB 8122680 A GB8122680 A GB 8122680A GB 2082621 A GB2082621 A GB 2082621A
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Prior art keywords
ferrous
reactor
bath
slag
production
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GB8122680A
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GB2082621B (en
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Kloeckner Werke AG
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Kloeckner Werke AG
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0006—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/57—Gasification using molten salts or metals
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0006—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state
    • C21B13/0026—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state introduction of iron oxide in the flame of a burner or a hot gas stream
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B3/00—General features in the manufacture of pig-iron
    • C21B3/04—Recovery of by-products, e.g. slag
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/36—Processes yielding slags of special composition
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0913—Carbonaceous raw material
    • C10J2300/093—Coal
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0953—Gasifying agents
    • C10J2300/0956—Air or oxygen enriched air
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0953—Gasifying agents
    • C10J2300/0959—Oxygen
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0953—Gasifying agents
    • C10J2300/0973—Water
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0953—Gasifying agents
    • C10J2300/0973—Water
    • C10J2300/0976—Water as steam
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0983—Additives
    • C10J2300/0996—Calcium-containing inorganic materials, e.g. lime
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/10—Reduction of greenhouse gas [GHG] emissions
    • Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies

Abstract

For the economic production of gas in a ferrous-bath-reactor in which reactant fuel is introduced below the bath surface and oxygen, and air or a mixture thereof is introduced below or above the level of the ferrous melt, slag which occurs in steel production is used as the desulphurizing slag in the ferrous- bath-reactor. Iron may be produced by reduction of iron oxide in the slag and iron ore may be added to the reactor. The iron may be tapped to feed a steel making furnace.

Description

SPECIFICATION Production of gas in a ferrous-bath-reactor This invention relates to the production of gas in a ferrous-bath-reactor in which the reactant fuel is introduced (in soiid and/or liquid form), into the reaction vessel below the surface of the ferrous bath whilst the reactant oxidising gas, for example oxygen, oxygen-enriched air, or air, is introduced below and/or above the level of the ferrous melt.
-There are known methods of causing fuels, not ab ty coal, to react with oxygen or oxygen-containing gases in a ferrous-bath and to produce a reaction gas which consists essentially of CO and H2. A special advantage of gas production in a ferrous-bathreactor resides in that the sulphur in the fuel is very largely absorbed by a slag.
German AS 2520 883 describes a method for the continuous gasification of coal or of carbonaceous fuels, in a ferrous-bath-reactor, in which the fuels and oxgyen, or oxygen-containing gases (the latter being enveloped by hydrocarbons), are introduced into the melt though tuyereswhich are arranged below the melt surface. Slag-formers, primarily limedust with or without an admixture or limestone, e.g. dolomite, are either propelled into the melt by the oxygen jets, or they are injected as an admixture to finely granular coal.
German PS 25 20 584 describes a process for the gasification of sulphurous coal in a ferrous-bathreactor in which a portion of the sulphurous slag is continuously drawn off in liquid form, desulphurized and returned in liquid form to the reactor bath. This method was found to have special advantages, particularly in respect of the calorific balance of the gasification process.
The known processes reveal different methods of gasifying carbonaceous fuels in a ferrous-bathreactor with a view to obtaining reaction gases which are largely sulphur-free, but all known processes involve the use of lime or limestone, potentially with admixtures of MgO or of dolomite, to produce a desulphurizing slag. The application of lime as a slag former, however, has two major drawbacks. First, there is the additional cost of the lime itself and, secondly, there is the expense of heating the lime to the temperature of the reaction bath. For instance, in order to gasify 1 tonne of coal it is necessary to add approximately 100 kg CaO with a sulphur content of about 1%. The current price of 1 tonne of lime dust is inthe region of DM 100.-- and a further sum of approximately DM 65.-- is needed for the energy required to heat this lime to the bath temperature.If cheaper lime stone is used the energy costs for heating and deoxidation in the ferrous bath reactor are so high that this method is even less economical.
It is the aim of the present invention to provide a desulphurization method for the production of coal gas in a ferrous reactor bath which is particularly attractive from an economical point of view.
According to the present invention this aim is achieved by using steelworks slags which are the normal byproduct of steel production as desuiphurizing slags in the ferrous-bath-reactor.
The steelworks slag may be fed into the reactor in different ways. For example, the slag may be charged in molten form (either batchwise or continuously) or in piece- or lump form on top of the surface of the ferrous melt in the reactor, or it may be injected in powder form below and/or above the surface of the melt in the reactor vessel. Powdered slag may also be admixed to the fuel, for example coal, which is to be gasified in the reactor.
In a particularly attractive and economical manner the steelworks slag may be introduced in molten form into the reactor vessel as a base-carrier for desulphurization in the ferrous reaction bath. This method can be easily applied where a ferrous-bath reactor-type coal-gas generating plant is sited close to a steelworks, as is generally the case, for example, in iron- or steelworks with an associated power station. In that event the gas which is produced in accordance with the present invention can be readily burnt in the boiler plant of the power station.
The use of steelworks slags according to the present invention affords a considerable saving because these slags are cheap and readily available, their range of potential further utilisation being otherwise somewhat narrowly limited. An added advantage resides in that this range of potential further utilisation of such slags is improved after they have worked as desulphurizing slags in the ferrous-bath-reactor and their composition has been modified by the incorporation of coal ash. In fact their composition is then closely similar to that of conventional blast furnace slags so that they can be further processed in a similar manner in the cement of building materials industries.
The slags which occur in steelworks, for example in the refining of low-phosphorous pig iron, according to the various converter-oxygen-refining methods, have approximately the following compositions: 50% CaO, 10% SiO2 30% FeO, 0.1% S, the remaining ingredients being essentiallyAl2O3, MgO, MnO and P205. Conveniently, the basicity of the slag (i.e. CaO/SiO2) is between 3 and 5 initially and is subsequently modified in the reactor to between 1 and 2.
The desulphurization method according to this invention for the production of gas in a ferrous-bathreactor conveniently makes use of these slags because their initial sulphur content is low, that is to say in the region of 0.08 to 0.12% and there is therefore a high capacity for sulphur absorption up to about 10% sulphur content. It is however preferable to restrict the sulphur content in the slags to about 3% because this means that they still come within the range of conventional blast furnace slags and can be further processed in a similar manner.
The application of steelworks slags, for example from a steel production converter, for desulphurization in the ferrous-bath-gas generator affords the added advantage that the content of iron oxide from these slags is reduced and thus additional iron is obtained in the gasification aggregate. This iron may be tapped in molten form batchwise from the reactor vessel and fed to the steel production plant. This is another favourable aspect of operating a ferrousbath reactor, for instance for coal gas production in an iron- or steelworks.
By virtue of the method according to this invention it is possible to remove almost completely the sulphur content in a coal which is to be gasified in the metallurgical slag which floats on the molten iron in the gasifiation aggregate. The product gas has a very low sulphur content - of the order of about 10 ppm. This shows that more than 99% of the sulphur are tied up in the slag.
The application of a method according to this invention has special economic advantages in gas production from types of coal which have a high sulphur or ash content.
In such cases, if, as hitherto customary, lime were added for slag formation, very large amounts of lime would be needed which would have a corresponding adverse cost effect and could potentially also entail the necessity of feeding additional energy to the batch because this type of coal, requiring so much lime, is no longer capable of autothermal gasification.
It is within the scope of this invention to feed water to the ferrous-bath reactor in orderto increase the concentration of hydrogen in the gas product. For preference in the gasification of types of coal which are rich in energy and afford an energy surplus in the gasification process, the liberated heat may be used to split water into hydrogen and oxgyen and whereas the hydrogen escapes from the melt the oxygen reacts with the carbon in the ferrous melt to form CO.
The water may be added below the surface level of the melt either in liquid form or in vapour form as steam. It goes without saying that it may also be introduced in spray or mist form in suspension by means of a suitable propellant gas. It may further be admixed to the coal which is to be gasified, or it may be incorporated in the coal in the form of a higher moisture content. For instance, it was found useful to charge the coal without previously drying it, with a constant water content, or to subject the coal only to a partial drying process in order to have a controlled specified moisture content at which it is introduced into the ferrous melt in the reaction vessel.
Thus the application of the steelworks slags for desulphurization purposes in the production of gas in a ferrous-bath-reactor according to the present invention has special economical and other advantages in several directions. By virtue of its chemical composition it is well suited for the function of a desulphurization slag in coal gas production and, if added in liquid form to the gasification aggregate it also saves energy which would otherwise be required to heat up the slag forming components.
Furthermore, after its utilisation in the ferrous-bathreactor the chemical composition of the steelworks slag has been modified in such a way that the slag is then suitable for use in cement production and in the building industry. For example, the slag may be modified in the reactor by fuel ash so that it has a basicity of between 1 and 2, and a final sulphur content of between 2% and 10%. This means that additionally to the resulting economic advantages there is the further advantage that there is no storage problem of the kind encountered with non-re-usable slags. The iron oxide percentage in the steelworks slag is reduced in the ferrous-bathreactor, and a pig iron is formed which can be turned into steel in the steelworks.
The desulphurization process as applied to gas production in a ferrous-bath-reactor in accordance with the present invention offers substantial advantages in the gasification of conventional types of coal or carbonaceous fuels if it involves the energysaving application of molten slag in as much as a higher proportion of energy is available for the reduction of the iron oxide in the ferrous-bathreactor. Over and above this it is also an objective of the present invention to utilise sulplus energy for the production of iron from iron ore orfrom pre-reduced iron ore.
In the context of the present invention one example of a ferrous-bath-reactor may be described, for example, as follows: A vessel which is basically similar to a converter, having an interior volume of approximately 150 m3, is charged first of all with 120 tonnes of molten iron having a carbon content of approximately 4%, to which 30 tonnes of molten slag from the LD process are added. In this ferrous-bath-reactor coal having a composition of 78.3% C, 5.0% H, 6.7% 02,5.0% ash, 751 0Kcal/kg Hu is gasified at the rate of 50 tonnes of coal per hour. The coal is fed into the bath below the surface level of the melt and gasified with the aid of oxygen which is also injected through the bottom of the vessel.Iron ore, for example in granulate or pellet form, may be added at the same time at the rate of 30 tonnes per hour, the fine granulate being injected by means of tuyeres arranged in the lower region of the converter whilst ore in lump or pellet form will be added to the melt from above. At the end of an operating time of 4 hours approximately 50 tonnes of slag and 210 tonnes of iron with approximately 2%C content will have accumulated in the converter so that the iron ore (which may be wholly or partly in pre-reduced form) will be reduced or further reduced in the ferrous-bath-reactor.
At this point the slag is, preferably completely, drawn off the converter and about 90 tonnes of iron are tapped off. More molten LD slag is then added to the melt at the above mentioned rate and the process continues in the same manner. The produced gas is conducted through a gasometer to suitable places of further utilisation. The capacity of a conventional gasometer is generally sufficient to ensure a continuous supply to consumers over tHe period of non-gas production required to remove the slag and the steel and to charge the new slag, which amounts to approximately 5 minutes.
The molten iron in the reactor can be tapped batchwise and/or continuously therefrom and may contain approximately 0.3% sulphur and approxi mately 0.1% phosphorus. Following a desulphurization process it can then be refined into steel in a known manner, for instance in a converter.

Claims (1)

1. A method for the production of gas in a ferrous-bath-reactor, in which the reactant fuel is introduced in solid and/or liquid form into the reaction vessel below the surface of the ferrous bath and the reactant oxidising gas, for example oxygen, oxygen-enriched air or air is introduced below and/or above the level of the ferrous melt, characterised in that slags which occur in the production of steel are used as desulphurizing slags in the ferrousbath-reactor.
2. A method according to Claim 1, characterised in.that the steelworks slag in molten form is conducted batchwise or continuously into the fer rous-bath-reactor.
3. A method according to Claim 1, characterised in that the steelworks slag is injected in powder form below and/or above the melt surface into the ferrous-bath reactor.
4. A method according to Claim 1, characterised in that the steelworks slag is charged in lump or piece form on top of the surface of the ferrous bath.
5. A method according to Claims 1 to 4, characterised in that the steelworks slag has the following approximate composition: 50% CaO, 10% SiO2, 30% FeO, 0.1% S, the remaining components being essentiallyAl2O3, MgO, MnO and P205.
6. A method according to any one of Claims 1 to 5, characterised in that the basicity (CaO/SiO2) of the steelworks slag is between 3 and 5.
7. A method according to any one of Claims 1 to 6, characterised in that the desulphurizing slag is modified in the ferrous-bath-reactor by fuel ash to a basicity of between 1 and 2.
8. A method according to one or more of Claims 1 to 7, characterised in that the desulphurizing slag in the ferrous-bath-reactor has a final sulphur content of between 2% and 10%.
9. A method according to one or more of Claims 1 to 8, characterised in that water and/or water vapour is introduced into the ferrous-bath-reactor below the surface level of the melt.
10. A method according to one or more of Claims 1 to 9, characterised in that pig iron is produced in the ferrous-bath-reactor due to a reduction of the iron oxide content in the steelworks slag.
11. A method according to one or more of Claims 1 to 10, characterised in that iron ore and/or pre-reduced iron ore is/are reduced or further reduced in the ferrous-bath-reactor.
12. A method according to one or more of Claims 1 to 11, characterised in that molten iron is tapped batchwise and/or continuously from the ferrousbath-reactor and conducted to a steel production process.
413. A method for the production of gas in a ferrous-bath-reactor substantially as hereinbefore described.
GB8122680A 1980-08-26 1981-07-23 Production of gas in a ferrous-bathreactor Expired GB2082621B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19803032043 DE3032043A1 (en) 1980-08-26 1980-08-26 METHOD FOR DESULFURATION IN GAS PRODUCTION IN THE IRON BATH REACTOR

Publications (2)

Publication Number Publication Date
GB2082621A true GB2082621A (en) 1982-03-10
GB2082621B GB2082621B (en) 1984-03-07

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JP (1) JPS5777001A (en)
AR (1) AR223610A1 (en)
AU (1) AU543565B2 (en)
BE (1) BE890093A (en)
BR (1) BR8105265A (en)
CS (1) CS222248B2 (en)
DE (1) DE3032043A1 (en)
ES (1) ES8206369A1 (en)
FR (1) FR2489366A1 (en)
GB (1) GB2082621B (en)
IT (1) IT1137765B (en)
LU (1) LU83579A1 (en)
NL (1) NL8103708A (en)
PL (1) PL232812A1 (en)
SE (1) SE8105011L (en)
ZA (1) ZA815856B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2546178A1 (en) * 1983-05-20 1984-11-23 Gagneraud Pere Fils Entreprise PROCESS FOR THE DESULFURIZATION OF GASES WITH FOUNDED MINERAL BATHS WHEN GASIFYING CARBON PRODUCTS
EP0326402A2 (en) * 1988-01-29 1989-08-02 KABUSHIKI KAISHA KOBE SEIKO SHO also known as Kobe Steel Ltd. Smelting reduction process
WO2001054774A1 (en) * 2000-01-28 2001-08-02 Tribovent Verfahrensentwicklung Gmbh Method for burning metal- or metal oxide containing fuels, especially petroleum coke
WO2007125537A1 (en) 2006-04-28 2007-11-08 Tata Steel Limited Set - up for production of hydrogen gas by thermo- chemical decomposition of water using steel plant slag and waste materials
EP1928781A1 (en) * 2005-09-30 2008-06-11 Tata Steel Limited A method for producing hydrogen and/or other gases from steel plant wastes and waste heat

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Publication number Priority date Publication date Assignee Title
FR2560209B1 (en) * 1984-02-23 1986-11-14 Usinor PROCESS FOR DESULFURIZING A SULFUR-CONTAINING FUEL GAS
DE3836549C1 (en) * 1988-10-27 1990-01-18 Krupp Stahl Ag, 4630 Bochum, De Process for desulphurising molten crude iron
DE19522320C1 (en) * 1995-06-20 1996-08-22 Joseph E Doumet Cooling and solidifying red hot molten blast furnace slag in metallurgy

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US3526478A (en) * 1968-11-01 1970-09-01 Black Sivalls & Bryson Inc Generation of hydrogen from sulfurbearing carbonaceous fuel
DE2520868C3 (en) * 1975-05-10 1979-05-03 Eisenwerk-Gesellschaft Maximilianshuette Mbh, 8458 Sulzbach-Rosenberg Process for supplying heat in the coal gasification process in the iron bath reactor
HU176773B (en) * 1975-05-09 1981-05-28 Maximilianshuette Eisenwerk Process and equipment for the continuous gasification of solid and/or liquid media containing coal and/or hydrocarbons in reactors with iron baths
DE2520584C3 (en) * 1975-05-09 1980-03-06 Eisenwerk-Gesellschaft Maximilianshuette Mbh, 8458 Sulzbach-Rosenberg Method and device for gasifying sulphurous coal in an iron bath reactor
JPS5241606A (en) * 1975-09-30 1977-03-31 Nippon Steel Corp Method for gasification of coal by using molten slug and molten iron
DE2750725A1 (en) * 1977-11-12 1979-05-17 Kloeckner Humboldt Deutz Ag Prodn. of sulphur-free synthesis gas in high-temp. melt - in presence of high-basicity solid slag-forming material
JPS5589395A (en) * 1978-12-26 1980-07-05 Sumitomo Metal Ind Ltd Gasification of solid carbonaceous material and its device

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2546178A1 (en) * 1983-05-20 1984-11-23 Gagneraud Pere Fils Entreprise PROCESS FOR THE DESULFURIZATION OF GASES WITH FOUNDED MINERAL BATHS WHEN GASIFYING CARBON PRODUCTS
EP0326402A2 (en) * 1988-01-29 1989-08-02 KABUSHIKI KAISHA KOBE SEIKO SHO also known as Kobe Steel Ltd. Smelting reduction process
EP0326402A3 (en) * 1988-01-29 1990-07-11 Kabushiki Kaisha Kobe Seiko Sho Also Known As Kobe Steel Ltd. Smelting reduction process
WO2001054774A1 (en) * 2000-01-28 2001-08-02 Tribovent Verfahrensentwicklung Gmbh Method for burning metal- or metal oxide containing fuels, especially petroleum coke
EP1928781A1 (en) * 2005-09-30 2008-06-11 Tata Steel Limited A method for producing hydrogen and/or other gases from steel plant wastes and waste heat
EP1928781A4 (en) * 2005-09-30 2011-06-29 Tata Steel Ltd A method for producing hydrogen and/or other gases from steel plant wastes and waste heat
CN101296858B (en) * 2005-09-30 2012-04-11 塔塔钢铁有限公司 A method for producing hydrogen and/or other gases from steel plant wastes and waste heat
WO2007125537A1 (en) 2006-04-28 2007-11-08 Tata Steel Limited Set - up for production of hydrogen gas by thermo- chemical decomposition of water using steel plant slag and waste materials
EP2013139A1 (en) * 2006-04-28 2009-01-14 Tata Steel Limited Set - up for production of hydrogen gas by thermo- chemical decomposition of water using steel plant slag and waste materials
EP2013139A4 (en) * 2006-04-28 2009-12-16 Tata Steel Ltd Set - up for production of hydrogen gas by thermo- chemical decomposition of water using steel plant slag and waste materials

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ZA815856B (en) 1982-09-29
CS222248B2 (en) 1983-05-27
PL232812A1 (en) 1982-03-15
DE3032043A1 (en) 1982-03-04
LU83579A1 (en) 1981-12-01
BR8105265A (en) 1982-04-27
AR223610A1 (en) 1981-08-31
IT8123285A0 (en) 1981-07-31
AU7426281A (en) 1982-03-04
NL8103708A (en) 1982-03-16
FR2489366B1 (en) 1984-02-17
IT1137765B (en) 1986-09-10
ES504654A0 (en) 1982-08-16
BE890093A (en) 1981-12-16
AU543565B2 (en) 1985-04-26
GB2082621B (en) 1984-03-07
JPS5777001A (en) 1982-05-14
FR2489366A1 (en) 1982-03-05
ES8206369A1 (en) 1982-08-16
SE8105011L (en) 1982-02-27

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